Sunspot drawing of 1971-6-23

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https://doi.org/10.7891/e-manuscripta-96741



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1971-06-23
07:30
Hs 1304.5:4490
https://doi.org/10.7891/e-manuscripta-96741
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
180 3 B -12.4 84.7
185 8 B 9.6 343.9
186 5 B -18.5 352.0
187 3 A -4.1 355.4
188 1 A 12.0 313.2
189 3 B 13.2 292.2
6 23